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Intelligence

Season & Weather Guide
Peak season offers stable clear weather windows.
Summit Window
Severe from November through winter
Alpine Start
01:00 AM – 09:00 AM
Avoid afternoon wind deterioration and high temperatures melting snow bridges.
Forecast Source
Meteoblue / Mountain-Forecast
Verify satellite forecasting reports before final summit push.
Conditions by Month
May
Jun
Oct
Sep
Lightning Risk
July & August
May-June and September-October offer the most reliable conditions for glacier travel, crossing the bergschrund, and ascending the 45-degree snow-ice wall. Peak summer monsoon months are highly dangerous due to rockfall and lightning, while winter brings severe jet stream winds and high avalanche risk.
Season at a Glance
Editor's Notes
May-June offers consolidated snow corridors, while September-October post-monsoon offers stable skies but extremely cold summit temperatures.
Month by Month
Conditions
Extreme winter conditions with severe blizzards.
Crowds
none
Sub-zero temperatures and high winter avalanche risk dominate.
Closed. Extreme winter conditions.
Conditions
Extreme winter conditions with deep snow accumulation.
Crowds
none
Sub-zero temperatures and high winter avalanche risk dominate.
Closed. Extreme winter conditions.
Conditions
Early season with deep, unconsolidated snow.
Crowds
none
Deep unconsolidated snow increases avalanche risk on the 45-degree snow-ice wall.
Early season. Deep snow accumulations.
Conditions
Deep unconsolidated snow.
Crowds
none
Significant lingering snow and high avalanche risk on steep slopes.
Early season. Deep snow accumulations.
Conditions
Consolidated snow provides better bridging over glacial crevasses and the bergschrund.
Crowds
low
Prime pre-monsoon window. Good snow stability.
Conditions
Pre-monsoon warmth with generally stable weather and consolidated snow.
Crowds
low
Prime pre-monsoon window. Good snow stability.
Conditions
Heavy monsoon rainfall and elevated lightning risk.
Crowds
none
Monsoon weather significantly increases rockfall and lightning hazards.
Monsoon danger. Landslides and severe rains.
Conditions
Heavy monsoon rainfall and elevated lightning risk.
Crowds
none
Monsoon weather significantly increases rockfall and lightning hazards.
Monsoon danger. Landslides and severe rains.
Conditions
Clear skies and stable weather, though crevasses may be more exposed.
Crowds
low
Crystal clear skies. Best visibility of the year.
Conditions
Clear skies and stable weather, though crevasses may be more exposed.
Crowds
low
Crystal clear skies. Best visibility of the year.
Conditions
Cold but stable weather. Severe jet stream impact begins.
Crowds
none
Extreme cold and severe jet stream winds on the summit ridge.
Winter setting in. Sub-zero temperatures rapid.
Conditions
Extreme winter conditions with severe blizzards.
Crowds
none
Sub-zero temperatures, severe jet stream impact, and high winter avalanche risk.
Closed. Extreme winter conditions.
Sunrise Spot
Summit ridge / high camp looking east.
Recommended Lenses
Astrophotography
Drones not permitted
Requires DGCA permission; usually restricted due to close proximity to borders.
Sub-zero temperatures rapidly draining batteries. Keep devices in inner clothing pockets.
Plan Your Expedition:
Compare routes side-by-side to find the perfect match for your fitness, dates, and budget.
Timing makes or breaks a trek. Send this to your group before you decide.
Step 3: Route Intelligence
Now see exactly how the route unfolds day by day, including terrain types and daily altitude profiles.
Explore the Itinerary